Machine for drawing in warp-threads



(No Model.) I

- L. P. SHERMAN. v MACHINE FOR DRAWING IN WARBTHREADS. No. 487,938.Patented Dec. 13, 1892.

I I l uh Z Ellyn/75? o UNITED STATES PATENT OFFICE.

LEWIS P. SHERMAN, OF BIDDEFORD, MAINE.

MACHINE FOR DRAWING IN WARP-THREADS.

SPECIFICATION forming part of Letters Patent No. 487,938, dated December13, 1892. I Application filed August 21, 1890- Serial No. 362,644- (Nomodel.)

To all whom it may concern.-

Be it known that I, LEWIS P. SHERMAN, a citizen of the United States,and a resident of Biddeford, York county, Maine, have invented certainImprovements in Machines for Drawing in Warp-Threads, of. which thefollowing is a specification.

My invention relates to certain improvements in the construction ofdevices for separating and holding the eyes of heddles in machines fordrawingin warp-th reads of that general class shown in Letters Patentgranted to me on the 31st day of July, 1883, Serial No. 282,124..

In the accompanying drawings, Figure 1 is a perspective'view of a devicefor separating the heddle-eyes of a heddle constructed in accordancewith my invention. Fig. 2 isaplan view of a pair of such devices. Fig. 3is a view similar to Fig. 2, illustrating the device in a differentposition. Fig. 4 isaside elevation looking in the direction of thearrow, Fig. l; and Fig. 5 is a perspective view illustrating the partsdetached from each other.

K represents a post or standard, which may be similar to that describedin the above-mentioned patent and mounted in the same manner upon thereciprocating carriage of the machine, one of such posts being mountedon each side of each heddle to be threaded, and each post being providedwith devices for operating upon the heddles in such manner as toseparate a single heddle-eye from the remainder of the eyes of theheddle and to allow such separated heddle-eye to be fed forward to thejaws which hold and clamp the eye during the passage of the needle. Atthe upper end of this post K is mounted a plate m, and clamped to thisplate mare three other plates m,m ,and m the plates mm being cut awayand somewhat narrower than the plates m and 012 thus forming a slidewaybetween the two latter plates for a slide N, to the rear end of which atn is pivoted a hook at. The slide N has a pin of, which passes through aslot in the plate m and is given a reciprocating motion by the lever B,pivoted to the post M. At the rear of the hook n is an inclinedprojection 19, which when the parts arein the to an arm 25, carrying aposition shown in Fig. 2 passes into a recess q in the plate m theprojection actingin conjunction with the recess to throw the hook n intoand out of engagement with the heddlecords, as shown in Figs. 2 and 3,as the slide N is moved to and fro by the bell-crank lever R, the hooksacting alternately on the rows of heddle-eyes to hold back all of theeyes in the heddle except the one which is'aboutto be presented totheholding and clamping fingers, which present the heddle-eye to thethreading-needle, as fully set forth in the abovementioned patent.

In the upper face of the plate m are two slots-one r in the form of aflattened V and the other 5 a straight s1otand adapted to bearings onthe post is a vertical shaft S, carrying an arm 3, carryinga pin adaptedto the slot 3, the outer end of this arm being pivoted plate T, having apin adapted to the V-shaped slot. On the vibration of the arm .9,therefore, the plate T passes forward between the heddle-cords andseparates the mass of eyes from the one which is to be fed forward.

Having thus described my invention, I claim and desire to secure byLetters Patent- 1. The combination of the reciprocating slide and itsguides, wi h heddle-separating hooks pivoted to said slides, and devicesfor advancing and retracting said hooks during their reciprocation,substantially as specified. 2. The combination of the plate T, a leverfor vibrating the same, the plate having guiding-slots for controllingthe movement of said plate and its lever, substantially as specified. 3.The combination of the upper and lower guidingplates, the recessed plateheld between the two, and a reciprocating hook having a projectionadapted to said recessed plate, substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

I LEWIS P. SHERMAN.

Witnesses:

JOHN C. HURD, GEO. MOORE.

